Question

Due to an increase of 30% in the price of eggs, 3 eggs are available for Rs. 7.80. The present rate of eggs per dozen is ____.

• A. Rs. 8.64
• B. Rs. 8.88
• C. Rs. 9.36
• D. Rs.10.40

Answer 1

Answer: (C)

Rs. 9.36

Given: Cost of $3$ eggs are Rs $7.80$

Then cost of one dozen eggs are $=7.80\times \frac{12}{3}$

$=$ Rs $31.20$

When cost by increase $30\%$

The cost increase on one dozen eggs $=31.20\times \frac{30}{100}$

$=9.36$